SessionStorage is part of the Web Storage API built into browsers. It lets a website save pairs of keys and values (small pieces of data) for the duration of a browser tab’s session. This data stays available for that tab only; closing the tab clears the stored data. You can use methods like sessionStorage.setItem(key, value), sessionStorage.getItem(key), removeItem, etc.
Unlike LocalStorage, which persists even after closing the browser, SessionStorage is temporary. It does not share data between tabs. Each tab has its own separate session; even tabs opened to the same website have different sessionStorage.
Because the data persists until the tab or window is closed, websites or scripts can use the presence or content of SessionStorage as a clue about what was done in that tab.
If certain web apps rely on SessionStorage for temporary state or identifiers (session IDs, form progress, etc.), unusual patterns (e.g. data lingering longer than expected) or mismatches in behavior could be used as signals.
Some scripts may try to check for keys or values in sessionStorage to profile user behavior or detect whether scripts are running normally or in an automation context.
Kameleo ensures realistic, consistent fingerprints by managing attributes like fonts, WebGL, screen resolution, headers, and navigator data. Profiles also store cookies, history, add-ons, and bookmarks, providing strong isolation. Since fingerprints are based on real device data, behavior (incl. SessionStorage) mimics normal browsers. Proper SessionStorage handling keeps profiles isolated, avoids cross-linking, and ensures a fully masked digital identity.
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